Combined main beam and seat carriage for a rowing machine



FIG. 1 is a perspective view of a combined main beam and seat carriagefor a rowing machine showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a side elevational view thereof, the side opposite beingsubstantially a mirror image;

FIG. 4 is a front elevational view thereof; and

FIG. 5 is a rear elevational view thereof.

The ornamental design for a combined main beam and seat carriage for arowing machine, substantially as shown and described.